import React from 'react';
import ReactDOM from 'react-dom/client';
// import App from './01_组件的定义方式/01_组件的定义';
// import App from './02_组件的生命周期/App';
import App from './03_ref获取元素/App';

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
);
